The two sports where I can watch any two teams play and still be interested and invested in the outcome and NFL and college basketball. NHL is slowly turning into that for me, but I still only watch my Sabres for roughly 3/4ths of the games.
College football and NBA I pay attention to only my teams, Syracuse and the Pacers respectively. I'll watch highlights but I'll rarely watch more than a few minutes of a game unless there is literally nothing to watch.
As for the final "big" sport, baseball... I can't stand it. Even watching highlights is incredibly boring for me. So unless the Sabres or Pacers in in their playoffs, June-September is my sports purgatory.
As for sports I play... I play pool a lot. I've been playing for roughly 4 years but I'm really starting to invest more time and money into it. I'll play pickup basketball with friends. I'm short and relatively heavy, but I don't get picked last because of my lockdown/illegal defense.